/* Definitions for code generation pass of GNU compiler.
Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+ Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#ifndef GCC_EXPR_H
+#define GCC_EXPR_H
+
+/* For inhibit_defer_pop */
+#include "function.h"
+/* For XEXP, GEN_INT, rtx_code */
+#include "rtl.h"
+/* For optimize_size */
+#include "flags.h"
+/* For host_integerp, tree_low_cst, fold_convert, size_binop, ssize_int,
+ TREE_CODE, TYPE_SIZE, int_size_in_bytes, */
+#include "tree.h"
+/* For GET_MODE_BITSIZE, word_mode */
+#include "machmode.h"
/* The default branch cost is 1. */
#ifndef BRANCH_COST
-#define BRANCH_COST 1
+#define BRANCH_COST(speed_p, predictable_p) 1
#endif
-/* Macros to access the slots of a QUEUED rtx.
- Here rather than in rtl.h because only the expansion pass
- should ever encounter a QUEUED. */
-
-/* The variable for which an increment is queued. */
-#define QUEUED_VAR(P) XEXP (P, 0)
-/* If the increment has been emitted, this is the insn
- that does the increment. It is zero before the increment is emitted.
- If more than one insn is emitted, this is the first insn. */
-#define QUEUED_INSN(P) XEXP (P, 1)
-/* If a pre-increment copy has been generated, this is the copy
- (it is a temporary reg). Zero if no copy made yet. */
-#define QUEUED_COPY(P) XEXP (P, 2)
-/* This is the body to use for the insn to do the increment.
- It is used to emit the increment. */
-#define QUEUED_BODY(P) XEXP (P, 3)
-/* Next QUEUED in the queue. */
-#define QUEUED_NEXT(P) XEXP (P, 4)
-
/* This is the 4th arg to `expand_expr'.
EXPAND_STACK_PARM means we are possibly expanding a call param onto
- the stack. Choosing a value of 2 isn't special; It just allows
- some code optimization in store_expr.
+ the stack.
EXPAND_SUM means it is ok to return a PLUS rtx or MULT rtx.
EXPAND_INITIALIZER is similar but also record any labels on forced_labels.
EXPAND_CONST_ADDRESS means it is ok to return a MEM whose address
is a constant that is not a legitimate address.
- EXPAND_WRITE means we are only going to write to the resulting rtx. */
-enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM = 2, EXPAND_SUM,
- EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE};
+ EXPAND_WRITE means we are only going to write to the resulting rtx.
+ EXPAND_MEMORY means we are interested in a memory result, even if
+ the memory is constant and we could have propagated a constant value. */
+enum expand_modifier {EXPAND_NORMAL = 0, EXPAND_STACK_PARM, EXPAND_SUM,
+ EXPAND_CONST_ADDRESS, EXPAND_INITIALIZER, EXPAND_WRITE,
+ EXPAND_MEMORY};
/* Prevent the compiler from deferring stack pops. See
inhibit_defer_pop for more information. */
more information. */
#define OK_DEFER_POP (inhibit_defer_pop -= 1)
\f
+/* If a memory-to-memory move would take MOVE_RATIO or more simple
+ move-instruction sequences, we will do a movmem or libcall instead. */
+
+#ifndef MOVE_RATIO
+#if defined (HAVE_movmemqi) || defined (HAVE_movmemhi) || defined (HAVE_movmemsi) || defined (HAVE_movmemdi) || defined (HAVE_movmemti)
+#define MOVE_RATIO(speed) 2
+#else
+/* If we are optimizing for space (-Os), cut down the default move ratio. */
+#define MOVE_RATIO(speed) ((speed) ? 15 : 3)
+#endif
+#endif
+
+/* If a clear memory operation would take CLEAR_RATIO or more simple
+ move-instruction sequences, we will do a setmem or libcall instead. */
+
+#ifndef CLEAR_RATIO
+#if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti)
+#define CLEAR_RATIO(speed) 2
+#else
+/* If we are optimizing for space, cut down the default clear ratio. */
+#define CLEAR_RATIO(speed) ((speed) ? 15 :3)
+#endif
+#endif
+
+/* If a memory set (to value other than zero) operation would take
+ SET_RATIO or more simple move-instruction sequences, we will do a movmem
+ or libcall instead. */
+#ifndef SET_RATIO
+#define SET_RATIO(speed) MOVE_RATIO(speed)
+#endif
+\f
enum direction {none, upward, downward};
-#ifdef TREE_CODE /* Don't lose if tree.h not included. */
/* Structure to record the size of a sequence of arguments
as the sum of a tree-expression and a constant. This structure is
also used to store offsets from the stack, which might be negative,
/* The amount that the stack pointer needs to be adjusted to
force alignment for the next argument. */
struct args_size alignment_pad;
+ /* Which way we should pad this arg. */
+ enum direction where_pad;
+ /* slot_offset is at least this aligned. */
+ unsigned int boundary;
};
-#endif
/* Add the value of the tree INC to the `struct args_size' TO. */
-#define ADD_PARM_SIZE(TO, INC) \
-do { \
- tree inc = (INC); \
- if (host_integerp (inc, 0)) \
- (TO).constant += tree_low_cst (inc, 0); \
- else if ((TO).var == 0) \
- (TO).var = convert (ssizetype, inc); \
- else \
- (TO).var = size_binop (PLUS_EXPR, (TO).var, \
- convert (ssizetype, inc)); \
+#define ADD_PARM_SIZE(TO, INC) \
+do { \
+ tree inc = (INC); \
+ if (host_integerp (inc, 0)) \
+ (TO).constant += tree_low_cst (inc, 0); \
+ else if ((TO).var == 0) \
+ (TO).var = fold_convert (ssizetype, inc); \
+ else \
+ (TO).var = size_binop (PLUS_EXPR, (TO).var, \
+ fold_convert (ssizetype, inc)); \
} while (0)
-#define SUB_PARM_SIZE(TO, DEC) \
-do { \
- tree dec = (DEC); \
- if (host_integerp (dec, 0)) \
- (TO).constant -= tree_low_cst (dec, 0); \
- else if ((TO).var == 0) \
- (TO).var = size_binop (MINUS_EXPR, ssize_int (0), \
- convert (ssizetype, dec)); \
- else \
- (TO).var = size_binop (MINUS_EXPR, (TO).var, \
- convert (ssizetype, dec)); \
+#define SUB_PARM_SIZE(TO, DEC) \
+do { \
+ tree dec = (DEC); \
+ if (host_integerp (dec, 0)) \
+ (TO).constant -= tree_low_cst (dec, 0); \
+ else if ((TO).var == 0) \
+ (TO).var = size_binop (MINUS_EXPR, ssize_int (0), \
+ fold_convert (ssizetype, dec)); \
+ else \
+ (TO).var = size_binop (MINUS_EXPR, (TO).var, \
+ fold_convert (ssizetype, dec)); \
} while (0)
/* Convert the implicit sum in a `struct args_size' into a tree
of type ssizetype. */
#define ARGS_SIZE_TREE(SIZE) \
((SIZE).var == 0 ? ssize_int ((SIZE).constant) \
- : size_binop (PLUS_EXPR, convert (ssizetype, (SIZE).var), \
+ : size_binop (PLUS_EXPR, fold_convert (ssizetype, (SIZE).var), \
ssize_int ((SIZE).constant)))
/* Convert the implicit sum in a `struct args_size' into an rtx. */
#define ARGS_SIZE_RTX(SIZE) \
((SIZE).var == 0 ? GEN_INT ((SIZE).constant) \
- : expand_expr (ARGS_SIZE_TREE (SIZE), NULL_RTX, VOIDmode, 0))
+ : expand_normal (ARGS_SIZE_TREE (SIZE)))
/* Supply a default definition for FUNCTION_ARG_PADDING:
usually pad upward, but pad short args downward on
big-endian machines. */
-#ifndef FUNCTION_ARG_PADDING
-#define FUNCTION_ARG_PADDING(MODE, TYPE) \
+#define DEFAULT_FUNCTION_ARG_PADDING(MODE, TYPE) \
(! BYTES_BIG_ENDIAN \
? upward \
: (((MODE) == BLKmode \
&& int_size_in_bytes (TYPE) < (PARM_BOUNDARY / BITS_PER_UNIT)) \
: GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \
? downward : upward))
+
+#ifndef FUNCTION_ARG_PADDING
+#define FUNCTION_ARG_PADDING(MODE, TYPE) \
+ DEFAULT_FUNCTION_ARG_PADDING ((MODE), (TYPE))
#endif
/* Supply a default definition for FUNCTION_ARG_BOUNDARY. Normally, we let
#define FUNCTION_ARG_BOUNDARY(MODE, TYPE) PARM_BOUNDARY
#endif
-/* Provide a default value for STRICT_ARGUMENT_NAMING. */
-#ifndef STRICT_ARGUMENT_NAMING
-#define STRICT_ARGUMENT_NAMING 0
-#endif
-
-/* Provide a default value for PRETEND_OUTGOING_VARARGS_NAMED. */
-#ifdef SETUP_INCOMING_VARARGS
-#ifndef PRETEND_OUTGOING_VARARGS_NAMED
-#define PRETEND_OUTGOING_VARARGS_NAMED 1
-#endif
-#else
-/* It is an error to define PRETEND_OUTGOING_VARARGS_NAMED without
- defining SETUP_INCOMING_VARARGS. */
-#define PRETEND_OUTGOING_VARARGS_NAMED 0
-#endif
-
-/* Nonzero if we do not know how to pass TYPE solely in registers. */
-extern bool default_must_pass_in_stack PARAMS((enum machine_mode, tree));
-#ifndef MUST_PASS_IN_STACK
-#define MUST_PASS_IN_STACK(MODE,TYPE) default_must_pass_in_stack(MODE, TYPE)
-#endif
-
-/* Nonzero if type TYPE should be returned in memory.
- Most machines can use the following default definition. */
-
-#ifndef RETURN_IN_MEMORY
-#define RETURN_IN_MEMORY(TYPE) (TYPE_MODE (TYPE) == BLKmode)
-#endif
-
/* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save.
Normally move_insn, so Pmode stack pointer. */
/* Provide default values for the macros controlling stack checking. */
+/* The default is neither full builtin stack checking... */
#ifndef STACK_CHECK_BUILTIN
#define STACK_CHECK_BUILTIN 0
#endif
+/* ...nor static builtin stack checking. */
+#ifndef STACK_CHECK_STATIC_BUILTIN
+#define STACK_CHECK_STATIC_BUILTIN 0
+#endif
+
/* The default interval is one page. */
#ifndef STACK_CHECK_PROBE_INTERVAL
#define STACK_CHECK_PROBE_INTERVAL 4096
#define STACK_CHECK_PROBE_LOAD 0
#endif
-/* This value is arbitrary, but should be sufficient for most machines. */
+/* This is a kludge to try to capture the discrepancy between the old
+ mechanism (generic stack checking) and the new mechanism (static
+ builtin stack checking). STACK_CHECK_PROTECT needs to be bumped
+ for the latter because part of the protection area is effectively
+ included in STACK_CHECK_MAX_FRAME_SIZE for the former. */
+#ifdef STACK_CHECK_PROTECT
+#define STACK_OLD_CHECK_PROTECT STACK_CHECK_PROTECT
+#else
+#define STACK_OLD_CHECK_PROTECT \
+ (USING_SJLJ_EXCEPTIONS ? 75 * UNITS_PER_WORD : 8 * 1024)
+#endif
+
+/* Minimum amount of stack required to recover from an anticipated stack
+ overflow detection. The default value conveys an estimate of the amount
+ of stack required to propagate an exception. */
#ifndef STACK_CHECK_PROTECT
-#define STACK_CHECK_PROTECT (75 * UNITS_PER_WORD)
+#define STACK_CHECK_PROTECT \
+ (USING_SJLJ_EXCEPTIONS ? 75 * UNITS_PER_WORD : 12 * 1024)
#endif
/* Make the maximum frame size be the largest we can and still only need
/* Generate code for a simple binary or unary operation. "Simple" in
this case means "can be unambiguously described by a (mode, code)
pair and mapped to a single optab." */
-extern rtx expand_simple_binop PARAMS ((enum machine_mode, enum rtx_code, rtx,
- rtx, rtx, int, enum optab_methods));
-extern rtx expand_simple_unop PARAMS ((enum machine_mode, enum rtx_code,
- rtx, rtx, int));
+extern rtx expand_simple_binop (enum machine_mode, enum rtx_code, rtx,
+ rtx, rtx, int, enum optab_methods);
+extern rtx expand_simple_unop (enum machine_mode, enum rtx_code, rtx, rtx,
+ int);
/* Report whether the machine description contains an insn which can
perform the operation described by CODE and MODE. */
-extern int have_insn_for PARAMS ((enum rtx_code, enum machine_mode));
+extern int have_insn_for (enum rtx_code, enum machine_mode);
/* Emit code to make a call to a constant function or a library call. */
-extern void emit_libcall_block PARAMS ((rtx, rtx, rtx, rtx));
+extern void emit_libcall_block (rtx, rtx, rtx, rtx);
/* Create but don't emit one rtl instruction to perform certain operations.
Modes must match; operands must meet the operation's predicates.
- Likewise for subtraction and for just copying.
- These do not call protect_from_queue; caller must do so. */
-extern rtx gen_add2_insn PARAMS ((rtx, rtx));
-extern rtx gen_add3_insn PARAMS ((rtx, rtx, rtx));
-extern rtx gen_sub2_insn PARAMS ((rtx, rtx));
-extern rtx gen_sub3_insn PARAMS ((rtx, rtx, rtx));
-extern rtx gen_move_insn PARAMS ((rtx, rtx));
-extern int have_add2_insn PARAMS ((rtx, rtx));
-extern int have_sub2_insn PARAMS ((rtx, rtx));
+ Likewise for subtraction and for just copying. */
+extern rtx gen_add2_insn (rtx, rtx);
+extern rtx gen_add3_insn (rtx, rtx, rtx);
+extern rtx gen_sub2_insn (rtx, rtx);
+extern rtx gen_sub3_insn (rtx, rtx, rtx);
+extern rtx gen_move_insn (rtx, rtx);
+extern int have_add2_insn (rtx, rtx);
+extern int have_sub2_insn (rtx, rtx);
/* Emit a pair of rtl insns to compare two rtx's and to jump
to a label if the comparison is true. */
-extern void emit_cmp_and_jump_insns PARAMS ((rtx, rtx, enum rtx_code, rtx,
- enum machine_mode, int, rtx));
+extern void emit_cmp_and_jump_insns (rtx, rtx, enum rtx_code, rtx,
+ enum machine_mode, int, rtx);
/* Generate code to indirectly jump to a location given in the rtx LOC. */
-extern void emit_indirect_jump PARAMS ((rtx));
+extern void emit_indirect_jump (rtx);
+
+/* Generate a conditional trap instruction. */
+extern rtx gen_cond_trap (enum rtx_code, rtx, rtx, rtx);
+
+#include "insn-config.h"
#ifdef HAVE_conditional_move
/* Emit a conditional move operation. */
-rtx emit_conditional_move PARAMS ((rtx, enum rtx_code, rtx, rtx,
- enum machine_mode, rtx, rtx,
- enum machine_mode, int));
+rtx emit_conditional_move (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
+ rtx, rtx, enum machine_mode, int);
/* Return nonzero if the conditional move is supported. */
-int can_conditionally_move_p PARAMS ((enum machine_mode mode));
+int can_conditionally_move_p (enum machine_mode mode);
#endif
-rtx emit_conditional_add PARAMS ((rtx, enum rtx_code, rtx, rtx,
- enum machine_mode, rtx, rtx,
- enum machine_mode, int));
-
+rtx emit_conditional_add (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
+ rtx, rtx, enum machine_mode, int);
+
+rtx expand_val_compare_and_swap (rtx, rtx, rtx, rtx);
+rtx expand_bool_compare_and_swap (rtx, rtx, rtx, rtx);
+rtx expand_sync_operation (rtx, rtx, enum rtx_code);
+rtx expand_sync_fetch_operation (rtx, rtx, enum rtx_code, bool, rtx);
+rtx expand_sync_lock_test_and_set (rtx, rtx, rtx);
\f
/* Functions from expmed.c: */
/* Arguments MODE, RTX: return an rtx for the negation of that value.
May emit insns. */
-extern rtx negate_rtx PARAMS ((enum machine_mode, rtx));
+extern rtx negate_rtx (enum machine_mode, rtx);
/* Expand a logical AND operation. */
-extern rtx expand_and PARAMS ((enum machine_mode, rtx, rtx, rtx));
+extern rtx expand_and (enum machine_mode, rtx, rtx, rtx);
/* Emit a store-flag operation. */
-extern rtx emit_store_flag PARAMS ((rtx, enum rtx_code, rtx, rtx,
- enum machine_mode, int, int));
+extern rtx emit_store_flag (rtx, enum rtx_code, rtx, rtx, enum machine_mode,
+ int, int);
/* Like emit_store_flag, but always succeeds. */
-extern rtx emit_store_flag_force PARAMS ((rtx, enum rtx_code, rtx, rtx,
- enum machine_mode, int, int));
-
-/* Functions from loop.c: */
-
-/* Given an insn and condition, return a canonical description of
- the test being made. */
-extern rtx canonicalize_condition PARAMS ((rtx, rtx, int, rtx *, rtx));
-
-/* Given a JUMP_INSN, return a canonical description of the test
- being made. */
-extern rtx get_condition PARAMS ((rtx, rtx *));
-
-/* Generate a conditional trap instruction. */
-extern rtx gen_cond_trap PARAMS ((enum rtx_code, rtx, rtx, rtx));
+extern rtx emit_store_flag_force (rtx, enum rtx_code, rtx, rtx,
+ enum machine_mode, int, int);
\f
/* Functions from builtins.c: */
-extern rtx expand_builtin PARAMS ((tree, rtx, rtx, enum machine_mode, int));
-extern void std_expand_builtin_va_start PARAMS ((tree, rtx));
-extern rtx std_expand_builtin_va_arg PARAMS ((tree, tree));
-extern rtx expand_builtin_va_arg PARAMS ((tree, tree));
-extern void default_init_builtins PARAMS ((void));
-extern rtx default_expand_builtin PARAMS ((tree, rtx, rtx,
- enum machine_mode, int));
-extern void expand_builtin_setjmp_setup PARAMS ((rtx, rtx));
-extern void expand_builtin_setjmp_receiver PARAMS ((rtx));
-extern void expand_builtin_longjmp PARAMS ((rtx, rtx));
-extern rtx expand_builtin_saveregs PARAMS ((void));
-extern void expand_builtin_trap PARAMS ((void));
-extern HOST_WIDE_INT get_varargs_alias_set PARAMS ((void));
-extern HOST_WIDE_INT get_frame_alias_set PARAMS ((void));
-extern void record_base_value PARAMS ((unsigned int, rtx, int));
-extern void record_alias_subset PARAMS ((HOST_WIDE_INT,
- HOST_WIDE_INT));
-extern HOST_WIDE_INT new_alias_set PARAMS ((void));
-extern int can_address_p PARAMS ((tree));
+extern rtx expand_builtin (tree, rtx, rtx, enum machine_mode, int);
+extern tree std_build_builtin_va_list (void);
+extern tree std_fn_abi_va_list (tree);
+extern tree std_canonical_va_list_type (tree);
+
+extern void std_expand_builtin_va_start (tree, rtx);
+extern rtx default_expand_builtin (tree, rtx, rtx, enum machine_mode, int);
+extern void expand_builtin_setjmp_setup (rtx, rtx);
+extern void expand_builtin_setjmp_receiver (rtx);
+extern rtx expand_builtin_saveregs (void);
+extern void expand_builtin_trap (void);
+extern rtx builtin_strncpy_read_str (void *, HOST_WIDE_INT, enum machine_mode);
\f
/* Functions from expr.c: */
-/* This is run once per compilation to set up which modes can be used
- directly in memory and to initialize the block move optab. */
-extern void init_expr_once PARAMS ((void));
+/* This is run during target initialization to set up which modes can be
+ used directly in memory and to initialize the block move optab. */
+extern void init_expr_target (void);
/* This is run at the start of compiling a function. */
-extern void init_expr PARAMS ((void));
-
-/* This is run at the end of compiling a function. */
-extern void finish_expr_for_function PARAMS ((void));
-
-/* Use protect_from_queue to convert a QUEUED expression
- into something that you can put immediately into an instruction. */
-extern rtx protect_from_queue PARAMS ((rtx, int));
-
-/* Perform all the pending incrementations. */
-extern void emit_queue PARAMS ((void));
-
-/* Tell if something has a queued subexpression. */
-extern int queued_subexp_p PARAMS ((rtx));
+extern void init_expr (void);
/* Emit some rtl insns to move data between rtx's, converting machine modes.
Both modes must be floating or both fixed. */
-extern void convert_move PARAMS ((rtx, rtx, int));
+extern void convert_move (rtx, rtx, int);
/* Convert an rtx to specified machine mode and return the result. */
-extern rtx convert_to_mode PARAMS ((enum machine_mode, rtx, int));
+extern rtx convert_to_mode (enum machine_mode, rtx, int);
/* Convert an rtx to MODE from OLDMODE and return the result. */
-extern rtx convert_modes PARAMS ((enum machine_mode, enum machine_mode,
- rtx, int));
+extern rtx convert_modes (enum machine_mode, enum machine_mode, rtx, int);
/* Emit code to move a block Y to a block X. */
{
BLOCK_OP_NORMAL,
BLOCK_OP_NO_LIBCALL,
- BLOCK_OP_CALL_PARM
+ BLOCK_OP_CALL_PARM,
+ /* Like BLOCK_OP_NORMAL, but the libcall can be tail call optimized. */
+ BLOCK_OP_TAILCALL
};
-extern void init_block_move_fn PARAMS ((const char *));
-extern void init_block_clear_fn PARAMS ((const char *));
+extern GTY(()) tree block_clear_fn;
+extern void init_block_move_fn (const char *);
+extern void init_block_clear_fn (const char *);
-extern rtx emit_block_move PARAMS ((rtx, rtx, rtx, enum block_op_methods));
+extern rtx emit_block_move (rtx, rtx, rtx, enum block_op_methods);
+extern rtx emit_block_move_via_libcall (rtx, rtx, rtx, bool);
+extern rtx emit_block_move_hints (rtx, rtx, rtx, enum block_op_methods,
+ unsigned int, HOST_WIDE_INT);
/* Copy all or part of a value X into registers starting at REGNO.
The number of registers to be filled is NREGS. */
-extern void move_block_to_reg PARAMS ((int, rtx, int, enum machine_mode));
+extern void move_block_to_reg (int, rtx, int, enum machine_mode);
/* Copy all or part of a BLKmode value X out of registers starting at REGNO.
The number of registers to be filled is NREGS. */
-extern void move_block_from_reg PARAMS ((int, rtx, int));
+extern void move_block_from_reg (int, rtx, int);
/* Generate a non-consecutive group of registers represented by a PARALLEL. */
-extern rtx gen_group_rtx PARAMS ((rtx));
+extern rtx gen_group_rtx (rtx);
/* Load a BLKmode value into non-consecutive registers represented by a
PARALLEL. */
-extern void emit_group_load PARAMS ((rtx, rtx, int));
+extern void emit_group_load (rtx, rtx, tree, int);
+
+/* Similarly, but load into new temporaries. */
+extern rtx emit_group_load_into_temps (rtx, rtx, tree, int);
/* Move a non-consecutive group of registers represented by a PARALLEL into
a non-consecutive group of registers represented by a PARALLEL. */
-extern void emit_group_move PARAMS ((rtx, rtx));
+extern void emit_group_move (rtx, rtx);
+
+/* Move a group of registers represented by a PARALLEL into pseudos. */
+extern rtx emit_group_move_into_temps (rtx);
/* Store a BLKmode value from non-consecutive registers represented by a
PARALLEL. */
-extern void emit_group_store PARAMS ((rtx, rtx, int));
+extern void emit_group_store (rtx, rtx, tree, int);
-#ifdef TREE_CODE
/* Copy BLKmode object from a set of registers. */
-extern rtx copy_blkmode_from_reg PARAMS ((rtx, rtx, tree));
-#endif
+extern rtx copy_blkmode_from_reg (rtx, rtx, tree);
/* Mark REG as holding a parameter for the next CALL_INSN. */
-extern void use_reg PARAMS ((rtx *, rtx));
+extern void use_reg (rtx *, rtx);
/* Mark NREGS consecutive regs, starting at REGNO, as holding parameters
for the next CALL_INSN. */
-extern void use_regs PARAMS ((rtx *, int, int));
+extern void use_regs (rtx *, int, int);
/* Mark a PARALLEL as holding a parameter for the next CALL_INSN. */
-extern void use_group_regs PARAMS ((rtx *, rtx));
+extern void use_group_regs (rtx *, rtx);
/* Write zeros through the storage of OBJECT.
If OBJECT has BLKmode, SIZE is its length in bytes. */
-extern rtx clear_storage PARAMS ((rtx, rtx));
+extern rtx clear_storage (rtx, rtx, enum block_op_methods);
+extern rtx clear_storage_hints (rtx, rtx, enum block_op_methods,
+ unsigned int, HOST_WIDE_INT);
+/* The same, but always output an library call. */
+rtx set_storage_via_libcall (rtx, rtx, rtx, bool);
+
+/* Expand a setmem pattern; return true if successful. */
+extern bool set_storage_via_setmem (rtx, rtx, rtx, unsigned int,
+ unsigned int, HOST_WIDE_INT);
+
+/* Determine whether the LEN bytes can be moved by using several move
+ instructions. Return nonzero if a call to move_by_pieces should
+ succeed. */
+extern int can_move_by_pieces (unsigned HOST_WIDE_INT, unsigned int);
/* Return nonzero if it is desirable to store LEN bytes generated by
CONSTFUN with several move instructions by store_by_pieces
function. CONSTFUNDATA is a pointer which will be passed as argument
in every CONSTFUN call.
- ALIGN is maximum alignment we can assume. */
-extern int can_store_by_pieces PARAMS ((unsigned HOST_WIDE_INT,
- rtx (*) (PTR, HOST_WIDE_INT,
- enum machine_mode),
- PTR, unsigned int));
+ ALIGN is maximum alignment we can assume.
+ MEMSETP is true if this is a real memset/bzero, not a copy
+ of a const string. */
+extern int can_store_by_pieces (unsigned HOST_WIDE_INT,
+ rtx (*) (void *, HOST_WIDE_INT,
+ enum machine_mode),
+ void *, unsigned int, bool);
/* Generate several move instructions to store LEN bytes generated by
CONSTFUN to block TO. (A MEM rtx with BLKmode). CONSTFUNDATA is a
pointer which will be passed as argument in every CONSTFUN call.
- ALIGN is maximum alignment we can assume. */
-extern void store_by_pieces PARAMS ((rtx, unsigned HOST_WIDE_INT,
- rtx (*) (PTR, HOST_WIDE_INT,
- enum machine_mode),
- PTR, unsigned int));
+ ALIGN is maximum alignment we can assume.
+ MEMSETP is true if this is a real memset/bzero, not a copy.
+ Returns TO + LEN. */
+extern rtx store_by_pieces (rtx, unsigned HOST_WIDE_INT,
+ rtx (*) (void *, HOST_WIDE_INT, enum machine_mode),
+ void *, unsigned int, bool, int);
/* Emit insns to set X from Y. */
-extern rtx emit_move_insn PARAMS ((rtx, rtx));
+extern rtx emit_move_insn (rtx, rtx);
/* Emit insns to set X from Y, with no frills. */
-extern rtx emit_move_insn_1 PARAMS ((rtx, rtx));
+extern rtx emit_move_insn_1 (rtx, rtx);
+
+extern rtx emit_move_complex_push (enum machine_mode, rtx, rtx);
+extern rtx emit_move_complex_parts (rtx, rtx);
/* Push a block of length SIZE (perhaps variable)
and return an rtx to address the beginning of the block. */
-extern rtx push_block PARAMS ((rtx, int, int));
+extern rtx push_block (rtx, int, int);
-#ifdef TREE_CODE
/* Generate code to push something onto the stack, given its mode and type. */
-extern void emit_push_insn PARAMS ((rtx, enum machine_mode, tree, rtx,
- unsigned int, int, rtx, int, rtx, rtx,
- int, rtx));
+extern void emit_push_insn (rtx, enum machine_mode, tree, rtx, unsigned int,
+ int, rtx, int, rtx, rtx, int, rtx);
/* Expand an assignment that stores the value of FROM into TO. */
-extern rtx expand_assignment PARAMS ((tree, tree, int, int));
+extern void expand_assignment (tree, tree, bool);
/* Generate code for computing expression EXP,
and storing the value into TARGET.
If SUGGEST_REG is nonzero, copy the value through a register
and return that register, if that is possible. */
-extern rtx store_expr PARAMS ((tree, rtx, int));
-#endif
+extern rtx store_expr (tree, rtx, int, bool);
/* Given an rtx that may include add and multiply operations,
generate them as insns and return a pseudo-reg containing the value.
Useful after calling expand_expr with 1 as sum_ok. */
-extern rtx force_operand PARAMS ((rtx, rtx));
+extern rtx force_operand (rtx, rtx);
-/* Return an object on the placeholder list that matches EXP, a
- PLACEHOLDER_EXPR. An object "matches" if it is of the type of the
- PLACEHOLDER_EXPR or a pointer type to it. For further information, see
- tree.def. If no such object is found, abort. If PLIST is nonzero, it is
- a location which initially points to a starting location in the
- placeholder list (zero means start of the list) and where a pointer into
- the placeholder list at which the object is found is placed. */
-extern tree find_placeholder PARAMS ((tree, tree *));
+/* Work horse for expand_expr. */
+extern rtx expand_expr_real (tree, rtx, enum machine_mode,
+ enum expand_modifier, rtx *);
/* Generate code for computing expression EXP.
An rtx for the computed value is returned. The value is never null.
In the case of a void EXP, const0_rtx is returned. */
-extern rtx expand_expr PARAMS ((tree, rtx, enum machine_mode,
- enum expand_modifier));
+static inline rtx
+expand_expr (tree exp, rtx target, enum machine_mode mode,
+ enum expand_modifier modifier)
+{
+ return expand_expr_real (exp, target, mode, modifier, NULL);
+}
+
+static inline rtx
+expand_normal (tree exp)
+{
+ return expand_expr_real (exp, NULL_RTX, VOIDmode, EXPAND_NORMAL, NULL);
+}
/* At the start of a function, record that we have no previously-pushed
arguments waiting to be popped. */
-extern void init_pending_stack_adjust PARAMS ((void));
+extern void init_pending_stack_adjust (void);
+
+/* Discard any pending stack adjustment. */
+extern void discard_pending_stack_adjust (void);
/* When exiting from function, if safe, clear out any pending stack adjust
so the adjustment won't get done. */
-extern void clear_pending_stack_adjust PARAMS ((void));
+extern void clear_pending_stack_adjust (void);
/* Pop any previously-pushed arguments that have not been popped yet. */
-extern void do_pending_stack_adjust PARAMS ((void));
+extern void do_pending_stack_adjust (void);
-#ifdef TREE_CODE
/* Return the tree node and offset if a given argument corresponds to
a string constant. */
-extern tree string_constant PARAMS ((tree, tree *));
+extern tree string_constant (tree, tree *);
/* Generate code to evaluate EXP and jump to LABEL if the value is zero. */
-extern void jumpifnot PARAMS ((tree, rtx));
+extern void jumpifnot (tree, rtx);
/* Generate code to evaluate EXP and jump to LABEL if the value is nonzero. */
-extern void jumpif PARAMS ((tree, rtx));
+extern void jumpif (tree, rtx);
/* Generate code to evaluate EXP and jump to IF_FALSE_LABEL if
the result is zero, or IF_TRUE_LABEL if the result is one. */
-extern void do_jump PARAMS ((tree, rtx, rtx));
-#endif
+extern void do_jump (tree, rtx, rtx);
/* Generate rtl to compare two rtx's, will call emit_cmp_insn. */
-extern rtx compare_from_rtx PARAMS ((rtx, rtx, enum rtx_code, int,
- enum machine_mode, rtx));
-extern void do_compare_rtx_and_jump PARAMS ((rtx, rtx, enum rtx_code, int,
- enum machine_mode, rtx,
- rtx, rtx));
+extern rtx compare_from_rtx (rtx, rtx, enum rtx_code, int, enum machine_mode,
+ rtx);
+extern void do_compare_rtx_and_jump (rtx, rtx, enum rtx_code, int,
+ enum machine_mode, rtx, rtx, rtx);
/* Two different ways of generating switch statements. */
-extern int try_casesi PARAMS ((tree, tree, tree, tree, rtx, rtx));
-extern int try_tablejump PARAMS ((tree, tree, tree, tree, rtx, rtx));
+extern int try_casesi (tree, tree, tree, tree, rtx, rtx, rtx);
+extern int try_tablejump (tree, tree, tree, tree, rtx, rtx);
/* Smallest number of adjacent cases before we use a jump table.
XXX Should be a target hook. */
-extern unsigned int case_values_threshold PARAMS ((void));
+extern unsigned int case_values_threshold (void);
+
+/* Functions from alias.c */
+#include "alias.h"
\f
-#ifdef TREE_CODE
/* rtl.h and tree.h were included. */
/* Return an rtx for the size in bytes of the value of an expr. */
-extern rtx expr_size PARAMS ((tree));
+extern rtx expr_size (tree);
/* Return a wide integer for the size in bytes of the value of EXP, or -1
if the size can vary or is larger than an integer. */
-extern HOST_WIDE_INT int_expr_size PARAMS ((tree));
+extern HOST_WIDE_INT int_expr_size (tree);
-extern rtx lookup_static_chain PARAMS ((tree));
+/* Return an rtx that refers to the value returned by a function
+ in its original home. This becomes invalid if any more code is emitted. */
+extern rtx hard_function_value (const_tree, const_tree, const_tree, int);
-/* Convert a stack slot address ADDR valid in function FNDECL
- into an address valid in this function (using a static chain). */
-extern rtx fix_lexical_addr PARAMS ((rtx, tree));
+extern rtx prepare_call_address (rtx, rtx, rtx *, int, int);
-/* Return the address of the trampoline for entering nested fn FUNCTION. */
-extern rtx trampoline_address PARAMS ((tree));
+extern bool shift_return_value (enum machine_mode, bool, rtx);
-/* Return an rtx that refers to the value returned by a function
- in its original home. This becomes invalid if any more code is emitted. */
-extern rtx hard_function_value PARAMS ((tree, tree, int));
+extern rtx expand_call (tree, rtx, int);
-extern rtx prepare_call_address PARAMS ((rtx, tree, rtx *, int, int));
+extern void fixup_tail_calls (void);
-extern rtx expand_call PARAMS ((tree, rtx, int));
+#ifdef TREE_CODE
+extern rtx expand_shift (enum tree_code, enum machine_mode, rtx, tree, rtx,
+ int);
+extern rtx expand_divmod (int, enum tree_code, enum machine_mode, rtx, rtx,
+ rtx, int);
+#endif
-extern rtx expand_shift PARAMS ((enum tree_code, enum machine_mode, rtx, tree,
- rtx, int));
-extern rtx expand_divmod PARAMS ((int, enum tree_code, enum machine_mode, rtx,
- rtx, rtx, int));
-extern void locate_and_pad_parm PARAMS ((enum machine_mode, tree, int, int,
- tree, struct args_size *,
- struct locate_and_pad_arg_data *));
-extern rtx expand_inline_function PARAMS ((tree, tree, rtx, int, tree, rtx));
+extern void locate_and_pad_parm (enum machine_mode, tree, int, int, tree,
+ struct args_size *,
+ struct locate_and_pad_arg_data *);
/* Return the CODE_LABEL rtx for a LABEL_DECL, creating it if necessary. */
-extern rtx label_rtx PARAMS ((tree));
+extern rtx label_rtx (tree);
/* As label_rtx, but additionally the label is placed on the forced label
list of its containing function (i.e. it is treated as reachable even
if how is not obvious). */
-extern rtx force_label_rtx PARAMS ((tree));
-#endif
-
-/* Indicate how an input argument register was promoted. */
-extern rtx promoted_input_arg PARAMS ((unsigned int, enum machine_mode *,
- int *));
+extern rtx force_label_rtx (tree);
/* Return an rtx like arg but sans any constant terms.
Returns the original rtx if it has no constant terms.
The constant terms are added and stored via a second arg. */
-extern rtx eliminate_constant_term PARAMS ((rtx, rtx *));
+extern rtx eliminate_constant_term (rtx, rtx *);
/* Convert arg to a valid memory address for specified machine mode,
by emitting insns to perform arithmetic if nec. */
-extern rtx memory_address PARAMS ((enum machine_mode, rtx));
-
-/* Like `memory_address' but pretent `flag_force_addr' is 0. */
-extern rtx memory_address_noforce PARAMS ((enum machine_mode, rtx));
-
-/* Set the alias set of MEM to SET. */
-extern void set_mem_alias_set PARAMS ((rtx, HOST_WIDE_INT));
-
-/* Set the alignment of MEM to ALIGN bits. */
-extern void set_mem_align PARAMS ((rtx, unsigned int));
-
-/* Set the expr for MEM to EXPR. */
-extern void set_mem_expr PARAMS ((rtx, tree));
-
-/* Set the offset for MEM to OFFSET. */
-extern void set_mem_offset PARAMS ((rtx, rtx));
-
-/* Set the size for MEM to SIZE. */
-extern void set_mem_size PARAMS ((rtx, rtx));
+extern rtx memory_address (enum machine_mode, rtx);
/* Return a memory reference like MEMREF, but with its mode changed
to MODE and its address changed to ADDR.
(VOIDmode means don't change the mode.
NULL for ADDR means don't change the address.) */
-extern rtx change_address PARAMS ((rtx, enum machine_mode, rtx));
+extern rtx change_address (rtx, enum machine_mode, rtx);
/* Return a memory reference like MEMREF, but with its mode changed
to MODE and its address offset by OFFSET bytes. */
#define adjust_automodify_address_nv(MEMREF, MODE, ADDR, OFFSET) \
adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 0)
-extern rtx adjust_address_1 PARAMS ((rtx, enum machine_mode, HOST_WIDE_INT,
- int, int));
-extern rtx adjust_automodify_address_1 PARAMS ((rtx, enum machine_mode,
- rtx, HOST_WIDE_INT, int));
+extern rtx adjust_address_1 (rtx, enum machine_mode, HOST_WIDE_INT, int, int);
+extern rtx adjust_automodify_address_1 (rtx, enum machine_mode, rtx,
+ HOST_WIDE_INT, int);
/* Return a memory reference like MEMREF, but whose address is changed by
adding OFFSET, an RTX, to it. POW2 is the highest power of two factor
known to be in OFFSET (possibly 1). */
-extern rtx offset_address PARAMS ((rtx, rtx, unsigned HOST_WIDE_INT));
-
-/* Return a memory reference like MEMREF, but with its address changed to
- ADDR. The caller is asserting that the actual piece of memory pointed
- to is the same, just the form of the address is being changed, such as
- by putting something into a register. */
-extern rtx replace_equiv_address PARAMS ((rtx, rtx));
+extern rtx offset_address (rtx, rtx, unsigned HOST_WIDE_INT);
-/* Likewise, but the reference is not required to be valid. */
-extern rtx replace_equiv_address_nv PARAMS ((rtx, rtx));
+/* Definitions from emit-rtl.c */
+#include "emit-rtl.h"
/* Return a memory reference like MEMREF, but with its mode widened to
MODE and adjusted by OFFSET. */
-extern rtx widen_memory_access PARAMS ((rtx, enum machine_mode, HOST_WIDE_INT));
+extern rtx widen_memory_access (rtx, enum machine_mode, HOST_WIDE_INT);
/* Return a memory reference like MEMREF, but which is known to have a
valid address. */
-extern rtx validize_mem PARAMS ((rtx));
+extern rtx validize_mem (rtx);
-#ifdef TREE_CODE
-/* Given REF, either a MEM or a REG, and T, either the type of X or
- the expression corresponding to REF, set RTX_UNCHANGING_P if
- appropriate. */
-extern void maybe_set_unchanging PARAMS ((rtx, tree));
+extern rtx use_anchored_address (rtx);
/* Given REF, a MEM, and T, either the type of X or the expression
corresponding to REF, set the memory attributes. OBJECTP is nonzero
if we are making a new object of this type. */
-extern void set_mem_attributes PARAMS ((rtx, tree, int));
+extern void set_mem_attributes (rtx, tree, int);
/* Similar, except that BITPOS has not yet been applied to REF, so if
we alter MEM_OFFSET according to T then we should subtract BITPOS
expecting that it'll be added back in later. */
-extern void set_mem_attributes_minus_bitpos PARAMS ((rtx, tree, int,
- HOST_WIDE_INT));
-#endif
+extern void set_mem_attributes_minus_bitpos (rtx, tree, int, HOST_WIDE_INT);
-/* Assemble the static constant template for function entry trampolines. */
-extern rtx assemble_trampoline_template PARAMS ((void));
+/* Return OFFSET if XEXP (MEM, 0) - OFFSET is known to be ALIGN
+ bits aligned for 0 <= OFFSET < ALIGN / BITS_PER_UNIT, or
+ -1 if not known. */
+extern int get_mem_align_offset (rtx, unsigned int);
-/* Given rtx, return new rtx whose address won't be affected by
- any side effects. It has been copied to a new temporary reg. */
-extern rtx stabilize PARAMS ((rtx));
-
-/* Given an rtx, copy all regs it refers to into new temps
- and return a modified copy that refers to the new temps. */
-extern rtx copy_all_regs PARAMS ((rtx));
+/* Assemble the static constant template for function entry trampolines. */
+extern rtx assemble_trampoline_template (void);
/* Copy given rtx to a new temp reg and return that. */
-extern rtx copy_to_reg PARAMS ((rtx));
+extern rtx copy_to_reg (rtx);
/* Like copy_to_reg but always make the reg Pmode. */
-extern rtx copy_addr_to_reg PARAMS ((rtx));
+extern rtx copy_addr_to_reg (rtx);
/* Like copy_to_reg but always make the reg the specified mode MODE. */
-extern rtx copy_to_mode_reg PARAMS ((enum machine_mode, rtx));
+extern rtx copy_to_mode_reg (enum machine_mode, rtx);
/* Copy given rtx to given temp reg and return that. */
-extern rtx copy_to_suggested_reg PARAMS ((rtx, rtx, enum machine_mode));
+extern rtx copy_to_suggested_reg (rtx, rtx, enum machine_mode);
/* Copy a value to a register if it isn't already a register.
Args are mode (in case value is a constant) and the value. */
-extern rtx force_reg PARAMS ((enum machine_mode, rtx));
+extern rtx force_reg (enum machine_mode, rtx);
/* Return given rtx, copied into a new temp reg if it was in memory. */
-extern rtx force_not_mem PARAMS ((rtx));
+extern rtx force_not_mem (rtx);
-#ifdef TREE_CODE
/* Return mode and signedness to use when object is promoted. */
-extern enum machine_mode promote_mode PARAMS ((tree, enum machine_mode,
- int *, int));
-#endif
+extern enum machine_mode promote_mode (const_tree, enum machine_mode, int *, int);
/* Remove some bytes from the stack. An rtx says how many. */
-extern void adjust_stack PARAMS ((rtx));
+extern void adjust_stack (rtx);
/* Add some bytes to the stack. An rtx says how many. */
-extern void anti_adjust_stack PARAMS ((rtx));
+extern void anti_adjust_stack (rtx);
/* This enum is used for the following two functions. */
enum save_level {SAVE_BLOCK, SAVE_FUNCTION, SAVE_NONLOCAL};
/* Save the stack pointer at the specified level. */
-extern void emit_stack_save PARAMS ((enum save_level, rtx *, rtx));
+extern void emit_stack_save (enum save_level, rtx *, rtx);
/* Restore the stack pointer from a save area of the specified level. */
-extern void emit_stack_restore PARAMS ((enum save_level, rtx, rtx));
+extern void emit_stack_restore (enum save_level, rtx, rtx);
+
+/* Invoke emit_stack_save for the nonlocal_goto_save_area. */
+extern void update_nonlocal_goto_save_area (void);
/* Allocate some space on the stack dynamically and return its address. An rtx
says how many bytes. */
-extern rtx allocate_dynamic_stack_space PARAMS ((rtx, rtx, int));
+extern rtx allocate_dynamic_stack_space (rtx, rtx, int);
/* Probe a range of stack addresses from FIRST to FIRST+SIZE, inclusive.
FIRST is a constant and size is a Pmode RTX. These are offsets from the
current stack pointer. STACK_GROWS_DOWNWARD says whether to add or
subtract from the stack. If SIZE is constant, this is done
with a fixed number of probes. Otherwise, we must make a loop. */
-extern void probe_stack_range PARAMS ((HOST_WIDE_INT, rtx));
+extern void probe_stack_range (HOST_WIDE_INT, rtx);
/* Return an rtx that refers to the value returned by a library call
in its original home. This becomes invalid if any more code is emitted. */
-extern rtx hard_libcall_value PARAMS ((enum machine_mode));
-
-/* Given an rtx, return an rtx for a value rounded up to a multiple
- of STACK_BOUNDARY / BITS_PER_UNIT. */
-extern rtx round_push PARAMS ((rtx));
+extern rtx hard_libcall_value (enum machine_mode);
/* Return the mode desired by operand N of a particular bitfield
insert/extract insn, or MAX_MACHINE_MODE if no such insn is
enum extraction_pattern { EP_insv, EP_extv, EP_extzv };
extern enum machine_mode
-mode_for_extraction PARAMS ((enum extraction_pattern, int));
-
-extern rtx store_bit_field PARAMS ((rtx, unsigned HOST_WIDE_INT,
- unsigned HOST_WIDE_INT,
- enum machine_mode, rtx, HOST_WIDE_INT));
-extern rtx extract_bit_field PARAMS ((rtx, unsigned HOST_WIDE_INT,
- unsigned HOST_WIDE_INT, int, rtx,
- enum machine_mode, enum machine_mode,
- HOST_WIDE_INT));
-extern rtx expand_mult PARAMS ((enum machine_mode, rtx, rtx, rtx, int));
-extern bool const_mult_add_overflow_p PARAMS ((rtx, rtx, rtx, enum machine_mode, int));
-extern rtx expand_mult_add PARAMS ((rtx, rtx, rtx, rtx,enum machine_mode, int));
-extern rtx expand_mult_highpart_adjust PARAMS ((enum machine_mode, rtx, rtx, rtx, rtx, int));
-
-extern rtx assemble_static_space PARAMS ((int));
-extern int safe_from_p PARAMS ((rtx, tree, int));
+mode_for_extraction (enum extraction_pattern, int);
+
+extern void store_bit_field (rtx, unsigned HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT, enum machine_mode, rtx);
+extern rtx extract_bit_field (rtx, unsigned HOST_WIDE_INT,
+ unsigned HOST_WIDE_INT, int, rtx,
+ enum machine_mode, enum machine_mode);
+extern rtx extract_low_bits (enum machine_mode, enum machine_mode, rtx);
+extern rtx expand_mult (enum machine_mode, rtx, rtx, rtx, int);
+extern rtx expand_mult_highpart_adjust (enum machine_mode, rtx, rtx, rtx, rtx, int);
+
+extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
+extern int safe_from_p (const_rtx, tree, int);
/* Call this once to initialize the contents of the optabs
appropriately for the current target machine. */
-extern void init_optabs PARAMS ((void));
-extern void init_all_optabs PARAMS ((void));
+extern void init_optabs (void);
+extern void init_all_optabs (void);
/* Call this to initialize an optab function entry. */
-extern rtx init_one_libfunc PARAMS ((const char *));
-
-extern void do_jump_by_parts_equality_rtx PARAMS ((rtx, rtx, rtx));
-extern void do_jump_by_parts_greater_rtx PARAMS ((enum machine_mode,
- int, rtx, rtx, rtx,
- rtx));
-
-#ifdef TREE_CODE /* Don't lose if tree.h not included. */
-extern void mark_seen_cases PARAMS ((tree, unsigned char *,
- HOST_WIDE_INT, int));
-#endif
+extern rtx init_one_libfunc (const char *);
+extern rtx set_user_assembler_libfunc (const char *, const char *);
-extern int vector_mode_valid_p PARAMS ((enum machine_mode));
+extern int vector_mode_valid_p (enum machine_mode);
-extern tree placeholder_list;
+#endif /* GCC_EXPR_H */
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